Blockchain architecture and methodologies for internet of things environment

With the continuous maturity of big data technology and open source community in the internet of things (IoT) environment, the intelligent system architecture and ecosystem are booming and developing, and the commercial supporting tools are increasingly fast. On the other hand, blockchain architecture was primarily designed to facilitate distributed transactions by removing central management in a secured and safe environment. Blockchain technology can share and distribute big data structures that can securely store digital transactions without using a central point of authority. More importantly, blockchain allows for the automated execution of smart contracts in IoT. Therefore, the sensible management of blockchain-based big data techniques is necessary to increase the IoT architecture and network efficiency. The main contribution of this special issue is to highlight the new methods and directions focusing on blockchain-based methodologies to address the IoT environments. This special issue invited researchers to publish selected original articles presenting new solutions to solve hot challenges of this topic. We have received more than 25 submitted manuscripts in this special issue in March 2022. By applying an initial technical check for all manuscripts, peer-review process was applied for all submitted manuscripts. Then, based on the review comments, we have accepted 16 papers.